Quote: Originally Posted by PROGMH With the speed of the wind then surely it can get colder than the air temperature? Stick your hand out the window for 5 minutes on a cold day and it almost goes numb with cold... but stand still and it doesnt feel cold. Maybe the same would work for an intercooler with the air speeding into it? dude he's sensor is reading -10 given that ambient would be say 20 to 28c most days that 30 to 38 degrees below ambient not going to happen. even with ice it wouldn't get that low, need dry ice.

Quote: Originally Posted by monaro327 dude he's sensor is reading -10 given that ambient would be say 20 to 28c most days that 30 to 38 degrees below ambient not going to happen. even with ice it wouldn't get that low, need dry ice. Yeah and an intercooler isnt a hand lol. With the hand thing its relative temperature, The temperature of the human body is 37degrees celcius right so putting it out in the wind is going to cool it a bit and its going to feel really cold even though its in fact warm. Think about it this way. An intercooler is there to help bleed heat from warm air to cold air. If the intake temp was below ambient, this means outside air would be bleeding air into the intercooler, warming it up. An intercooler which drops the temp to ambient is 100% efficient. Unfortunatley theres no such intercooler. Expensive ones are about 70% efficient.

if he also has water injection with a straight methonal mix he will get a fair bit lower than ambient temp because the methanol takes the heat out when it evapouates